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<html xmlns="http://www.w3.org/1999/xhtml">

<head>
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
    <meta http-equiv="X-UA-Compatible" content="IE=EmulateIE7" />
    <title>javascript控制图片或div层的上下移动滚动效果</title>
</head>

<body>

<a href="javascript: void(0);" onmouseover="ScrollDivUp_T=setInterval(ScrollDivUp,10);" onmouseout="clearInterval(ScrollDivUp_T)">上</a>
<div id="items" style="margin:5px 0px 5px 0px;width:100px;height:100px;border:1px solid #dddddd;overflow:hidden">
    <img src="../img/test.png" alt="" width="100%"/>
</div>
<a href="javascript: void(0);" onmouseover="ScrollDivDown_T=setInterval(ScrollDivDown,10);" onmouseout="clearInterval(ScrollDivDown_T)">下</a>
<script language="javascript">
    function ScrollDivUp(){document.getElementById('items').scrollTop -= 1;}
    function ScrollDivDown(){document.getElementById('items').scrollTop += 1;}
</script>

</body>

</html>